Schematic representation of the main detector of the RadMap Telescope, which consists of a stack of 1024 scintillating plastic fibers. They are arranged in a stack of 32 layers of alternating orientation. Also shown are the coordinate system and the spherical coordinates ϕ and θ we use to parametrize the orientation of particle tracks. The red and blue arrows indicate the two-dimensional projections we use to visualize and analyze the data from the detector.